//C10:10.11:sum_arr2.c
#include <stdio.h>
#define SIZE  10

int sump(int *start, int *end);
int main(void)
{
	int marbles[SIZE] = {20, 10, 5, 39, 4, 16,19, 26, 31, 20};
	long answer;

	answer = sump(marbles, marbles + SIZE);
	printf("The total nubmer of marbles is %ld.\n", answer);
}

int sump(int *start, int *end)
{
	int total = 0;
	while (start < end)
	{
		total += *start;
		start++;
	}
	
	return total;
}
